Patents by Inventor Jan Otterstedt

Jan Otterstedt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140215124
    Abstract: The disclosure relates to an electronic memory system, and more specifically, to a system for adaptive bit rate programming of a memory device, and a method for adaptive bit rate programming of a memory device. According to an embodiment, a system for adaptive bit rate programming of a memory device including a plurality of memory cells is provided, wherein the memory cells are configured to be electrically programmable by application of a current supplied by a current source, the system including selection devices for selecting memory cells for programming based on availability of current from the current source.
    Type: Application
    Filed: January 28, 2013
    Publication date: July 31, 2014
    Applicant: Infineon Technologies AG
    Inventors: Wolf Allers, Jan Otterstedt, Mihail Jefremow, Edvin Paparisto, Leonardo Castro
  • Publication number: 20140215174
    Abstract: A memory device includes a first memory portion and a second memory portion. The second memory portion includes a security functionality. The size of the first memory portion and the size of the second memory portion are adjustable.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Inventors: Jan Otterstedt, Steffen Sonnekalb, Andreas Wenzel
  • Publication number: 20140153348
    Abstract: A method of operating an integrated circuit includes determining at least one characteristic of at least one memory cell and conducting an operation for the at least one memory cell, wherein based on the at least one characteristic determined a disturbance for at least one additional memory cell is adjusted.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Nirschl, Jan Otterstedt, Alexander Duch
  • Publication number: 20140126306
    Abstract: An electronic device includes a non-volatile memory having a plurality of memory cells, a memory controller, and an evaluator. The memory controller is configured to provide control signals to the non-volatile memory causing the non-volatile memory, or a selected memory section of the non-volatile memory, to be in one of a read state and a weak erase state, wherein the weak erase state causes the plurality of memory cells to maintain different states depending on different physical properties of the plurality of memory cells. The evaluator is configured to read out the plurality of memory cells and to provide a readout pattern during the read state, wherein the readout pattern that is provided after a preceding weak erase state corresponds to a physically unclonable function (PUF) response of the electronic device uniquely identifying the electronic device.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Inventors: Jan Otterstedt, David Müller
  • Patent number: 8670277
    Abstract: A memory includes a memory cell including a first terminal, a second terminal and a channel extending between the first terminal and the second terminal. The memory further includes an energy storage element configured to support a programming of the memory cell, the energy storage element being coupled to the first terminal, an energy supply coupled to the energy storage element, and a controller. The controller is configured to activate the energy supply and to bring the channel of the memory cell into a non-conductive state for energizing the energy storage element, and to subsequently bring the channel of the memory cell into a conductive state for programming the memory cell based on the energy stored in the energy storage element.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 11, 2014
    Assignee: Infineon Technologies AG
    Inventors: Thomas Nirschl, Jan Otterstedt, Wolf Allers, Dominique Savignac
  • Patent number: 8670270
    Abstract: One or more embodiments may be related to a method of operating a phase-change memory element, comprising: providing the phase-change memory element, the phase-change memory element having a first terminal and a second terminal; causing a first current through the memory element from the first terminal to the second terminal; and causing a second current through the memory element from the second terminal to the first terminal, wherein the causing the first current programs the memory element from a first resistance state to a second resistance state and the causing the second current programs the memory element from the first resistance state to the second resistance state.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 11, 2014
    Assignee: Infineon Technologies AG
    Inventors: Jan Otterstedt, Thomas Nirschl, Christian Peters, Michael Bollu, Wolf Allers, Michael Sommer
  • Publication number: 20140063923
    Abstract: The invention relates to methods and systems for reading a memory cell and in particular, an STT MRAM. In accordance with one aspect of the invention, a method for reading a memory cell includes combining a cell current from a memory cell with a reference current from a reference source to create an average current, enabling the average current to flow through a first mirror transistor in a sense path and a second mirror transistor in a reference path, storing the current mismatch on a capacitor coupled to the gates of the first mirror transistor and the second mirror transistor, disconnecting the memory cell from the reference path and disconnecting the reference source from the sense path, enabling the cell current only to flow through the sense path, and determining the output level of the memory cell.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: Infineon Technologies AG
    Inventors: Mihail Jefremow, Wolf Allers, Jan Otterstedt, Christian Peters, Thomas Kern
  • Publication number: 20140064011
    Abstract: The invention relates to an electronic memory system, and more specifically, to a system for providing voltage supply protection in a memory device, and a method for providing voltage supply protection in a memory device. According to an embodiment, a system for providing voltage supply protection in a memory device is provided, the system including a memory array including a plurality of memory cells arranged in a plurality of groups of memory cells, and a plurality of current limiting elements, wherein each group of memory cells is associated with at least one current limiting element.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: Infineon Technologies AG
    Inventors: Jan Otterstedt, Wolf Allers, Mihail Jefremow, Edvin Paparisto, Leonardo Castro, Thomas Kern
  • Publication number: 20140056079
    Abstract: Embodiments relate to systems and methods including a step of switching between two or more erase operations and/or two or more write operations for erasing of and/or writing to least one memory cell of a nonvolatile memory enabling to select a most suitable erase and/or write operation for a particular erase and/or write operation within the memory.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Applicant: Infineon Technologies AG
    Inventors: Jan Otterstedt, Wolf Allers, Mihail Jefremow, Edvin Paparisto, Leonardo Castro, Christian Peters
  • Publication number: 20140056058
    Abstract: The invention relates to methods and systems for reading a memory cell and in particular, an STT MRAM. In accordance with one aspect of the invention, a system for reading a memory cell includes a read path and a precharge path. The reference current is provided through the read path and is sampled via a sampling element in the read path. Subsequently, a current from the memory cell is provided through the same sampling element and read path. The output level is then determined by the cell current working against the sampled reference current.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 27, 2014
    Applicant: Infineon Technologies AG
    Inventors: Mihail Jefremow, Wolf Allers, Jan Otterstedt, Christian Peters, Thomas Kern
  • Patent number: 8649205
    Abstract: A memory cell is provided, the memory cell including a first two-terminal memory element; a second two-terminal memory element; a controller circuit configured to program the first two-terminal memory element to one or more states and the second two-terminal memory element to one or more states, wherein a state of the first two-terminal memory element and a state of the second two-terminal memory element are interdependent; and a measuring circuit configured to measure a difference signal between a first two-terminal memory element signal associated with the state of the first two-terminal memory element and a second two-terminal memory element signal associated with the state of the second two-terminal memory element.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: February 11, 2014
    Assignee: Infineon Technologies AG
    Inventors: Christian Peters, Mihail Jefremow, Jan Otterstedt, Wolf Allers, Robert Wiesner
  • Patent number: 8533557
    Abstract: A device for protecting a data word against data corruption includes first and second determiners. The first determiner is configured to determine an error correction code cvA associated with a data word a so that cvA=aAT, with A being a generator matrix of a linear systematic base correction code, the columns of which enable performance of an x-bit error correction on replica of the data word a and the associated error correction code cvA. The second determiner is configured to determine an extended error correction code cvE so that (cvA|cvE)=aFT, with F being an extended generator matrix F = ( A E ) of an extended linear systematic correction code, the columns of which enable, using the extension error correction code cvE, performance of an y-bit error correction, with y>x, on a replica of the data word a and the associated error correction code cvA.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: September 10, 2013
    Assignee: Infineon Technologies AG
    Inventors: Jan Otterstedt, Rainer Goettfert
  • Publication number: 20130208527
    Abstract: A memory cell is provided, the memory cell including a first two-terminal memory element; a second two-terminal memory element; a controller circuit configured to program the first two-terminal memory element to one or more states and the second two-terminal memory element to one or more states, wherein a state of the first two-terminal memory element and a state of the second two-terminal memory element are interdependent; and a measuring circuit configured to measure a difference signal between a first two-terminal memory element signal associated with the state of the first two-terminal memory element and a second two-terminal memory element signal associated with the state of the second two-terminal memory element.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Christian Peters, Mihail Jefremow, Jan Otterstedt, Wolf Allers, Robert Wiesner
  • Patent number: 8509007
    Abstract: Some aspects of the present disclosure relate to a read circuit that uses a hybrid read scheme as set forth herein. In this hybrid read scheme, a state machine, at a first time in the read operation, sets a reference signal SRef to a first reference value to induce determination of a first comparison result. At a second subsequent time in the read operation, the state machine sets the reference signal SRef to a second reference value, which is based on the first comparison result. Setting the reference signal to the second reference value induces determination of a second comparison result. The first and second comparison results are then used to determine the digital value read from the memory cell.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: August 13, 2013
    Assignee: Infineon Technologies AG
    Inventors: Thomas Nirschl, Nigel Chan, Jan Otterstedt
  • Patent number: 8502276
    Abstract: Embodiments of the invention describe compact memory arrays. In one embodiment, the memory cell array includes first, second, and third gate lines disposed over a substrate, the second gate lines are disposed between the first and the third gate lines. The first, the second, and the third gate lines form adjacent gate lines of the memory cell array. The memory cell array further includes first metal lines disposed over the first gate lines, the first metal lines coupled to the first gate lines; second metal lines disposed over the second gate lines, the second metal lines coupled to the second gate lines; and third metal lines disposed over the third gate lines, the third metal lines coupled to the third gate lines. The first metal lines, the second metal lines and the third metal lines are disposed in different metallization levels.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 6, 2013
    Assignee: Infineon Technologies AG
    Inventors: Jan Otterstedt, Thomas Nirschl, Michael Bollu, Wolf Allers
  • Patent number: 8437175
    Abstract: In one embodiment, a bit-line interface is disclosed. The bit-line interface has a multiplexer having a plurality of bit-line outputs, and a write path coupled to a multiplexer signal input. The bit-line interface also has a read path coupled to the multiplexer signal input, wherein the read path and the write path share at least one component.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 7, 2013
    Assignee: Infineon Technologies AG
    Inventors: Thomas Nirschl, Jan Otterstedt, Michael Bollu, Wolf Allers
  • Publication number: 20130058159
    Abstract: One or more embodiments may be related to a method of operating a phase-change memory element, comprising: providing the phase-change memory element, the phase-change memory element having a first terminal and a second terminal; causing a first current through the memory element from the first terminal to the second terminal; and causing a second current through the memory element from the second terminal to the first terminal, wherein the causing the first current programs the memory element from a first resistance state to a second resistance state and the causing the second current programs the memory element from the first resistance state to the second resistance state.
    Type: Application
    Filed: February 23, 2012
    Publication date: March 7, 2013
    Inventors: Jan Otterstedt, Thomas Nirschl, Christian Peters, Michael Bollu, Wolf Allers, Michael Sommer
  • Publication number: 20130028026
    Abstract: A memory includes a memory cell including a first terminal, a second terminal and a channel extending between the first terminal and the second terminal. The memory further includes an energy storage element configured to support a programming of the memory cell, the energy storage element being coupled to the first terminal, an energy supply coupled to the energy storage element, and a controller. The controller is configured to activate the energy supply and to bring the channel of the memory cell into a non-conductive state for energizing the energy storage element, and to subsequently bring the channel of the memory cell into a conductive state for programming the memory cell based on the energy stored in the energy storage element.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Nirschl, Jan Otterstedt, Wolf Allers, Dominique Savignac
  • Patent number: 8344429
    Abstract: Embodiments of the invention describe compact memory arrays. In one embodiment, the memory cell array includes first, second, and third gate lines disposed over a substrate, the second gate lines are disposed between the first and the third gate lines. The first, the second, and the third gate lines form adjacent gate lines of the memory cell array. The memory cell array further includes first metal lines disposed over the first gate lines, the first metal lines coupled to the first gate lines; second metal lines disposed over the second gate lines, the second metal lines coupled to the second gate lines; and third metal lines disposed over the third gate lines, the third metal lines coupled to the third gate lines. The first metal lines, the second metal lines and the third metal lines are disposed in different metallization levels.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: January 1, 2013
    Assignee: Infineon Technologies AG
    Inventors: Jan Otterstedt, Thomas Nirschl, Michael Bollu, Wolf Allers
  • Patent number: 8327223
    Abstract: An embodiment of the invention relates to a memory device and a related method. In an embodiment, a check matrix for an error-correcting code is formed so that sets of input data bits can be written, wherein each set of input data bits generates one set of error-correcting code bits that can be written independently of each other and in an arbitrary order. An error-correcting code is thereby produced without the need to erase or copy any existing, originally written bit upon presentation of new input data.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 4, 2012
    Assignee: Infineon Technologies AG
    Inventor: Jan Otterstedt